Sight feed control device



Juy 23, 1935. c. B. WARE SIGHT FEED CONTROL DEVICE 2 Sheets-Sheet 1 Filed Oct. '7, 1932 Juy 23, 1935. c. B. WARE 2,009,306

SIGHT FEED CONTROL DEVICE Filed Octy '7. 1932 2 Sheets-Sheet 2 aww-ym Patented `Iuly 23,V 1935 Y r i i.:

`r*The principal Aobjectof this inventionis copre-- vide I ,an A improved device.` Afor feeding measured; quantities of one liquid to. another circulating in or ilowinggthrough a fluid system.

'5 Another object oid-,he invention isto provide al device of ,the stated character incorporating vis-f ual -means for `effecting the require,dL-feedfadjust.-Y ment s.- v Y p.

' In the attached drawings: Y,

Figure '1, 1is aqgdiagrammatic VView illustrating a uid system provided with a device made in accordance with my invention;

' Fig. 2 is a plan view of the system shown in Fig. 1;

Fig. 3 is a side elevation of my device;

Fig. 4 is a section on the line 4 4, Fig. 3;

Fig. 5 is a section on the line 5 5, Fig. 3, and

Fig. 6 is a section on the line 6 6, Fig. 5.

With reference to Figs. 1' and Zeof the drawings, I is a centrifugal pump the intake of which may be considered, for purposes of illustration, to be connected through a pipe 2 with a swimming pool. From the pump I water withdrawn. from the swimming pool passes through a pipe 3 to a filter 4, and thence through a pipe 5 is returned to the swimming pool. Y

In the treatment of water in swimming pools, it is frequently desirable to introduce small quantities of alum, copper sulfate, chloride of lime or other chemical substance. The prior method of introducing these materials has proven extremely wasteful by reason of inability to accurately regulate the quantities introduced, and since for eiectiveness a certain minimum amountis required, it is necessary, in order to insure effectiveness, to introduce larger quantities than arey strictly necessary.

In accordance with my invention, I provide a tank 6 which is partially lled with alum as illustrated. From the tank 6 a pipe 'I extends to the pipe 3, which as previously described connects the pump I with the iilter 4. As illustrated, the pipe I extends downwardly through the tank and through the mass of alum therein to a point adjacent the bottom, the lower end portion of the pipe preferably being perforated. A pipe 8 enters the top of the tank, this pipe entering the bottom of a casing 9, shown in Figs. 3 to 6 inclusive. As

illustrated, the casing comprises a base member il. by meansv of agyoke '1,4 made, .for example, fof flexible wire, Athe;inturned extremities I 5; of this volse enterinsapertures in .the `peripheral .Surface Ofzthe base ILI.- Atitsupper end the yoke carries fixed theretoafstud ltwhich proiectsdownwardl-y i and carries afnut VI.;-A A block or disk i8 rests in a g nut l'I and flexing the lends of the yoke. I4 outwardly to free the inturned extremities from the apertures which they normally occupy in the base vI I. v

As shown in Fig. 5, the base Il has at one side a tapped recess 22 which communicates through a passage 23 with a second tapped recess 24. From the bottom of this latter recess a channel 25 (see Fig. 6) extends to the upper surface of the base. II in the interior of the dome I3, and a tube 26 tted into the upper end of the channel 25 extends upwardly in the interior of the dome with its upper end turned over and downwardly, as clearly illustrated. The recess 24 receives the body lmember 21 of aneedle valve. The stemy 28 of this valve, which is'threaded into the body member 21, being adapted to cooperate with the terminal end of the passage 23 to restrict the latter as required. As shown in Fig. 5, this stem is adjustable through la knurled head 29. The recess 22 receives one end of a duct 3| which, as shown in Fig. 2, connects With a pipe 32, and this pipe is connected with a source of water Vpressure exceedingthe pressure of the water in the pipe 3 produced by the pump I.

Under the foregoing conditions, assuming a circulation of water through the system I 2 3 4-5, and assuming further the imposition of water pressure upon the pipe 32 in excess of the pressure in the aforesaid system, water necessarily Awill be forced through the pipe 3|, the passage 23, the channel 25, and tube 26 to the interior of the dome I3, iiow of water into the dome fromthe tube 26 being visible through the transparent walls of the casing. This water passes through the port I2 'and pipe 8 to the top of the container 6, and passes downwardlyY the needle Valve 28, the oW of water through the alum bed may be regulated, and the visibility of the ow through the transparent casing I3 makes possible entirely accurate feeding of the alum to the iuid system. It will be apparent that the air confined in the upper part of the container 6 and in the dome I3 prevents accumulations of Water in the tank 6 from passing upwardly into the dome I3 and destroying the sight feed from the tube 26.. lfit-the sameY time, by: reason of the preponderance 0i pressure in the pipe 3 2 over the pressure in the pipe 3, the feeding of the alum water through the pipe 1 to the fluid system must necessarily be continuous. v, i u

The device while simple in form is extremely eiTective for the intended purpose permitting highly accurate regulation of` the alum water passing into the iluid system'. "A practical ad*- vantage of the device is the material'saving'v in alum over a given period of time. I

lThe systenrmay" be extended'to the *measured introduction of other chemicalsyand in Figs. 1 and 2, I have illustrated an'extensionof -the -systern for introduction, for example, of sodal to the Water circulating 4through the ltersystem.v For this purpose,- -there is necessary a mere duplicaneither necessary nor desirable that the material introduced pass through the iilter 4.

I claim: 1,'A device of the character set forth comprising a base, a transparent dome, means for detachably securing the dome on the base, said base having intake and discharge ports communicating with the interior of said dome, together with recesses communicating with each other and one of lwhich is in continuous communication with the said intake port, a ductjextendi'ng upwardly in the interior of said dome from the intake port, `and an adjustable valve secured in the last-named ...of the said recesses and controlling the flow of "fluid through said intake port.

2.1Inja'uid system, the combination with a V duct, andpressure means for forcing fluid through said duct,` of a container for a soluble chemical ghaving an airspace at the top thereof, a duct establishing communication between the rstnamed duct and the container at a'point in the latter below said air-space,'a transparent casing constituting an air trap' above the top of said container and in communication with said 4air space, and means including a' drip device for introducing regulated quantities ofa liquid solvent for said chemical into the transparent casing under a pressure in excess of the pressure in' the said rst-named duct'. l l f l CHARLES B. WARE 

